﻿#region Copyright Simple Injector Contributors
/* The Simple Injector is an easy-to-use Inversion of Control library for .NET
 * 
 * Copyright (c) 2015-2017 Simple Injector Contributors
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and 
 * associated documentation files (the "Software"), to deal in the Software without restriction, including 
 * without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
 * copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the 
 * following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies or substantial 
 * portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
 * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO 
 * EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#endregion

namespace SimpleInjector.Integration.AspNetCore
{
    using System;
    using Lifestyles;
    using Microsoft.AspNetCore.Builder;
    using Microsoft.AspNetCore.Hosting;

    internal sealed class RequestScopingStartupFilter : IStartupFilter
    {
        private readonly Container container;

        public RequestScopingStartupFilter(Container container)
        {
            this.container = container;
        }

        public Action<IApplicationBuilder> Configure(Action<IApplicationBuilder> next)
        {
            return builder =>
            {
                ConfigureRequestScoping(builder);

                next(builder);
            };
        }

        private void ConfigureRequestScoping(IApplicationBuilder builder)
        {
            builder.Use(async (context, next) =>
            {
                using (AsyncScopedLifestyle.BeginScope(container))
                {
                    await next();
                }
            });
        }
    }
}